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R540 (2376-501)
F-27383-1 © Copyright 2006 TAC. All Rights Reserved. 109
Accessories
Typical Applications
Figure 1 Typical Application.
Model No. Wholesale Model No. Description
K502 22-150 Mounting bracket.
TOOL-082  5/64 in. hexhead wrench.
M
R540
Averaging Relay
S2 S1MB
M
BM
Zone 1
Thermostat
D.A.
M
BM
Zone 2
Thermostat
D.A.
Branch Air to
Control Device
S
1
S
2
2
+